| Mid-Carboniferous unconformity | |
| Type: | Geological formation |
| Age: | Namurian, Carboniferous, c. |
| Period: | Carboniferous |
| Prilithology: | Sandstone |
| Otherlithology: | Conglomerate |
| Underlies: | Mississippian-aged rocks |
| Overlies: | Pennsylvanian-aged rocks |
The Mid-Carboniferous unconformity is an unconformity located in many countries, such as England (Namurian Series), Thailand, The United States and more. It has been dated to the Namurian, Middle Carboniferous (c.326-313 Ma) and the formation is often noted as being similar to the mid-Carboniferous eustatic event.[1]